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Bad White [126]

3 years ago

5

What is the main economic activity in Bolivia?

1 answer:

sleet_krkn [62]3 years ago

8 0

the answer is agriculture

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Which of the following are affected by environmental factors? 1) Housing 2) Folk tales 3) Traditional religions 4) Cuisine A. it

andrey2020 [161]

Answer:

Items 1, 2, 3, and 4.

Explanation:

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2 years ago

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vlada-n [284]

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3 years ago

If I measure the recession velocities of 2 galaxies and galaxy A has a velocity twice that of galaxy B, how far away is B if A i

alexdok [17]

Answer: 100Mpc

Explanation:

Hubble deduced that the farther the galaxy is, the more redshifted it is in its spectrum, and noted that all galaxies are "moving away from each other with a speed that increases with distance", and enunciated the now called Hubble–Lemaître Law.

This is mathematically expressed as:

$V=H_{o}D$ (1)

Where:

$V$ is the approximate recession velocity of the galaxy

$H_{o}$ is the Hubble constant

$D$ is the distance

Now, we have two galaxies A and B ande we know the following:

Galaxy A has a velocity twice that of galaxy B

$V_{A}=2V_{B}$ (2)

Galaxy A is 200 Mpc away

$D_{A}=200Mpc$ (3)

According to Hubble Law:

$V_{A}=H_{o}D_{A}$ (4)

$V_{A}=H_{o}200Mpc$ (5)

Substituting (2) in (5):

$2V_{B}=H_{o}200Mpc$ (6)

$V_{B}=\frac{H_{o}200Mpc}{2}$ (7)

$V_{B}=H_{o}100Mpc$ (8)

If $V_{B}=H_{o}D_{B}$ (9)

$D_{B}=\frac{V_{B}}{H_{o}}$ (10)

Substituting (8) in (11):

$D_{B}=\frac{H_{o}100Mpc}{H_{o}}$ (11)

Finally:

$D_{B}=100Mpc$

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3 years ago

Different works of river and different stages of river

mina [271]

Answer:

oh why explain

plasssssasssssaaaaaaa

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3 years ago

do you think governments should have a plan or procedure in place to deal with the movement of the continents? why or why not

Montano1993 [528]

No, it is too small to even notice. By the time they move that far, we will probably be dead.

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2 years ago